decaffeinate: Run post-processing cleanups on CommandRunner.coffee and 25 other files

app/coffee/ContentTypeMapper.js

@@ -1,3 +1,8 @@
+/* eslint-disable
+    no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
 let ContentTypeMapper;
 const Path = require('path');